Thinking about a people's vote / second referendum, I think that by sitting on the fence so long the MPs that are now calling for this have made it significantly more difficult for remain to win.
1. It's not government policy to remain any more so there will be no government sponsored propaganda mailed to every voter.
2. The chancellor is pro - leave so there will be no project fear campaign emanating from the treasury
3. The Leave team have already won one referendum on this. They have all the advantage of a prior successful campaign.
4. The Lib Dems can't campaign in a referendum with any credibility now. They want to unilaterally revoke art 50 without a referendum and have said they will not respect the result of a people's vote.
5.The personalities promoting remain are utterly toxic. Whatever you think of David Cameron and George Osborne now, at the time of the last referendum they were reasonably well respected across the spectrum and they still lost. Instead of those two making the case against Boris and Michael Gove, the remain campagin will be lead by Jeremy Corbyn and John McDonell with support from wee Jimmy Cranky, Tony Blair, Alastair Campbell and Gina Miller. It's a poisonous line up that damages the cause.
I think if I was a Remoaner I would be more frit of a JFC led second referendum campaign than I would of a general election.